Scissor type prefabricated square pile hoisting device

By introducing anti-skid plates and drive components into the scissor-type prefabricated square pile lifting device, uniform clamping of the four sides of the square pile is achieved, solving the problems of unstable clamping and wear in the existing device, and improving the lifting stability and the convenience of replacing the anti-skid plates.

CN223304012UActive Publication Date: 2025-09-05WUHAN KEDIMEI TECH CO LTD
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Patent Information

Application Number
CN202422884485.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-09-05
Estimated Expiration
2034-11-26

AI Technical Summary

Technical Problem

The existing scissor-type prefabricated square pile lifting device has low stability when clamping the square pile, and the contact surface between the clamping plate and the square pile is easily worn, resulting in unstable clamping.

Method used

A clamping mechanism is designed, including an anti-skid plate, a driving assembly and a disassembly assembly. The gear and rack driven by the shaft-clamping motor drive the L-shaped plate to move synchronously, thereby achieving uniform clamping of the sides of the other pile. The anti-skid plate is disassembled and assembled through the dovetail groove and bolts for easy replacement.

Benefits of technology

The clamping stability of the hoisting device on the pile is improved, the wear of the splint is avoided, and the replacement of the anti-skid plate is convenient, ensuring the stability of long-term use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of hoisting equipment, in particular to a scissor type prefabricated square pile hoisting device which comprises a mechanical arm assembly, a first clamping arm and a second clamping arm, clamping plates are fixedly connected to one end of the first clamping arm and one end of the second clamping arm, the clamping plates are of hollow structures, clamping mechanisms are arranged on the outer sides and the inner sides of the clamping plates, and the mechanical arm assembly is arranged on the mechanical arm assembly. And the clamping mechanism is used for improving the clamping stability of the device for the square pile, the clamping mechanism comprises an anti-skid plate, a driving assembly, a dismounting assembly and two L-shaped plates, the anti-skid plate is detachably mounted on the inner side of a clamping plate through the clamping mechanism, and then the situation that the surface of the clamping plate is abraded and the square pile is clamped unstably is avoided. And the other two sides of the square pile are clamped by the two sets of L-shaped plates in the moving state close to each other, so that the two sets of L-shaped plates are matched with the two clamping plates to clamp and limit the side faces of the periphery of the square pile, and therefore the clamping stability of the device for the square pile is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of hoisting equipment, in particular to a scissor-type prefabricated square pile hoisting device. Background Art

[0002] After the square piles are prefabricated on the platform, in order to place the pads at the bottom and insert the lifting wire rope, it is necessary to use a lifting device to lift it up steadily by about 30cm, and then place the pads and wire rope.

[0003] The existing scissor-type prefabricated square pile lifting device uses the scissor principle to convert the dead weight of the square pile into friction between the hoist and the pile body, so that the friction and gravity are balanced, and the lifting is convenient and quick. However, the two clamping plates in the existing device in a close state only clamp the two sides of the square pile, and the other two sides of the square pile are not clamped and limited, which affects the stability of the device in clamping the square pile. Moreover, after the clamping plates have been used for clamping the square pile for a period of time, the contact surface of the clamping plates and the square pile will be worn, which can easily cause unstable clamping of the square pile. Utility Model Content

[0004] The purpose of the utility model is to provide a scissor-type prefabricated square pile lifting device to solve the problem of low stability of the existing scissor-type prefabricated square pile lifting device in clamping the square piles in the background art.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a scissor-type prefabricated square pile lifting device, comprising a mechanical arm assembly, a first clamping arm, and a second clamping arm, wherein the first clamping arm and the second clamping arm are slidably connected, and one end of each of the first clamping arm and the second clamping arm is fixedly connected to a clamping plate, wherein the clamping plate has a hollow structure, and a clamping mechanism is provided on the outer side and the inner side of the clamping plate, and the clamping mechanism is used to improve the stability of the device in clamping the square pile;

[0006] The clamping mechanism includes an anti-slip plate, a driving assembly, a disassembly assembly and two L-shaped plates;

[0007] The driving assembly is used to drive the two L-shaped plates to move synchronously toward or away from each other;

[0008] The anti-skid plate is detachably connected to the clamping plate through the disassembly assembly component.

[0009] Preferably, the driving assembly includes a shaft-holding motor, a rotating shaft, a gear and two racks;

[0010] The shaft-holding motor is fixedly mounted on one side of the outer wall of the clamp, the rotating shaft is rotatably mounted on the inner wall of the clamp, and the rotating shaft is fixedly connected to the output shaft end of the shaft-holding motor, the gear is assembled on the outer wall of the rotating shaft, and the rack is assembled on one end of the non-bending part of the L-shaped plate.

[0011] Preferably, the gear is engaged with the two racks, and the gear and the two racks in the engaged state are used to drive the two L-shaped plates to move synchronously.

[0012] Preferably, the non-bent portion of the L-shaped plate is slidably connected to the interior of the clamping plate, and the bent portion of the L-shaped plate is sleeved on the surface of the square pile.

[0013] Preferably, the disassembly and assembly components include a fixing frame, a dovetail groove, a dovetail piece, a screw hole and a bolt;

[0014] The fixing frame is fixedly connected to the other side of the outer wall of the splint, the dovetail groove is opened on the surface of the fixing frame and extends inwardly thereto, the dovetail piece is fixedly connected to one side of the anti-slip plate, the screw hole passes through the anti-slip plate, the dovetail piece, the dovetail groove to the interior of the fixing frame in sequence, and the bolt is threadedly connected to the screw hole.

[0015] Preferably, the dovetail groove is used for inserting the dovetail piece therein, the inner wall of the dovetail groove matches the outer wall of the dovetail piece, and the dovetail groove and the dovetail piece in the engaged state are used to pre-connect the anti-slip plate with the fixing frame.

[0016] Preferably, the anti-slip plate is detachably connected to the fixing bracket, and the bolts in the tightened state are used to fasten and install the fixing bracket and the anti-slip plate in the pre-connected state.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the clamping mechanism allows the anti-slip plate to be removed and installed on the inner side of the splint, thereby avoiding the situation where the splint surface is worn and the clamping of the square pile is unstable, and it is also convenient to disassemble and replace the worn anti-slip plate, and the two groups of L-shaped plates in a close moving state clamp the other two sides of the square pile, so that the two groups of L-shaped plates cooperate with the two splints to clamp the four sides of the square pile to a limited position, thereby improving the stability of the device in clamping the square pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a side view of the main structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the clamping mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the splint of the present utility model.

[0022] In the figure: 1. Robot arm assembly; 2. First clamping arm; 3. Second clamping arm; 4. Clamping plate; 5. Clamping mechanism; 501. Shaft-holding motor; 502. L-shaped plate; 503. Fixing bracket; 504. Anti-skid plate; 505. Dovetail groove; 506. Dovetail piece; 507. Screw hole; 508. Bolt; 509. Rotating shaft; 5010. Gear; 5011. Rack. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4 The utility model provides a technical solution for a scissor-type prefabricated square pile lifting device: a scissor-type prefabricated square pile lifting device, comprising a mechanical arm assembly 1, a first clamping arm 2 and a second clamping arm 3, the first clamping arm 2 and the second clamping arm 3 being slidably connected, one end of each of the first clamping arm 2 and the second clamping arm 3 being fixedly connected to a clamping plate 4, the clamping plate 4 being a hollow structure, a clamping mechanism 5 being provided on the outer side and the inner side of the clamping plate 4, and the clamping mechanism 5 being used to improve the stability of the device in clamping the square pile;

[0025] The clamping mechanism 5 includes an anti-slip plate 504, a driving assembly, a disassembly assembly and two L-shaped plates 502;

[0026] The driving assembly is used to drive the two L-shaped plates 502 to move toward or away from each other synchronously;

[0027] The anti-slip plate 504 is detachably connected to the clamping plate 4 through a disassembly assembly component.

[0028] Please refer to Figure 4 The driving assembly includes a shaft-holding motor 501, a rotating shaft 509, a gear 5010 and two racks 5011;

[0029] The shaft-holding motor 501 is fixedly installed on one side of the outer wall of the splint 4, the rotating shaft 509 is rotatably installed on the inner wall of the splint 4, and the rotating shaft 509 is fixedly connected to the output shaft end of the shaft-holding motor 501, the gear 5010 is assembled on the outer wall of the rotating shaft 509, and the rack 5011 is assembled on one end of the non-bending part of the L-shaped plate 502.

[0030] In this embodiment: the shaft-holding motor 501 is powered on and operated, so that the output shaft of the shaft-holding motor 501 in the running state drives the rotating shaft 509 and the gear 5010 to rotate. Since the gear 5010 is engaged with the two racks 5011, the gear 5010 in the rotating state drives the two racks 5011 to move closer to each other, and the two racks 5011 in the synchronous moving state respectively drive the two L-shaped plates 502 to move closer to each other. Since two L-shaped plates 502 are slidably installed on the two splints 4, the two groups of L-shaped plates 502 in the moving state clamp the other two sides of the square pile, so that the two groups of L-shaped plates 502 cooperate with the two splints 4 to clamp the four sides of the square pile to a limit, thereby improving the stability of the device in clamping the square pile.

[0031] Please refer to Figure 4 The gear 5010 is meshed with the two racks 5011 , and the meshed gear 5010 and the two racks 5011 are used to drive the two L-shaped plates 502 to move synchronously.

[0032] In this embodiment, since the gear 5010 is meshed with the two racks 5011, the gear 5010 in the rotating state drives the two racks 5011 to move closer to each other, and the two racks 5011 in the synchronous moving state respectively drive the two L-shaped plates 502 to move closer to each other.

[0033] Please refer to Figure 4 The non-bending portion of the L-shaped plate 502 is slidably connected to the inside of the clamping plate 4, and the bending portion of the L-shaped plate 502 is sleeved on the surface of the square pile.

[0034] In this embodiment, two sets of L-shaped plates 502 in a moving state are used to clamp the other two sides of the square pile, so that the two sets of L-shaped plates 502 cooperate with the two clamping plates 4 to clamp and limit the four sides of the square pile.

[0035] Please refer to Figure 3 , the disassembly and assembly components include a fixing frame 503, a dovetail slot 505, a dovetail piece 506, a screw hole 507 and a bolt 508;

[0036] The fixing frame 503 is fixedly connected to the other side of the outer wall of the splint 4, the dovetail groove 505 is opened on the surface of the fixing frame 503 and extends inwardly therefrom, the dovetail piece 506 is fixedly connected to one side of the anti-slip plate 504, the screw hole 507 passes through the anti-slip plate 504, the dovetail piece 506, the dovetail groove 505 to the interior of the fixing frame 503 in sequence, and the bolt 508 is threadedly connected to the screw hole 507.

[0037] In this embodiment: the dovetail piece 506 fixedly connected to one side of the anti-slip plate 504 is inserted into the dovetail groove 505 opened on the surface of the fixing frame 503, so that the dovetail groove 505 and the dovetail piece 506 in the engaged state pre-connect the anti-slip plate 504 and the fixing frame 503, and then the bolt 508 is inserted into the screw hole 507, so that the bolt 508 and the screw hole 507 are threadedly connected, and the tightened bolt 508 fastens the pre-connected fixing frame 503 and the anti-slip plate 504, and then the anti-slip plate 504 is completely installed on the inner side of the splint 4, avoiding the wear of the surface of the splint 4 and the unstable clamping of the other pile, and the above structure facilitates the disassembly and replacement of the damaged anti-slip plate 504.

[0038] Please refer to Figure 3 The dovetail groove 505 is used to insert the dovetail piece 506 into the interior thereof, the inner wall of the dovetail groove 505 coincides with the outer wall of the dovetail piece 506 , and the engaged dovetail groove 505 and the dovetail piece 506 are used to pre-connect the anti-slip plate 504 with the fixing frame 503 .

[0039] In this embodiment, the dovetail piece 506 is inserted into the dovetail groove 505 , and the dovetail groove 505 and the dovetail piece 506 in the engaged state pre-connect the anti-slide plate 504 and the fixing frame 503 .

[0040] Please refer to Figure 3 The anti-slide plate 504 is detachably connected to the fixing frame 503 , and the tightened bolts 508 are used to fasten and install the fixing frame 503 and the anti-slide plate 504 in the pre-connected state.

[0041] In this embodiment: the bolt 508 is inserted into the screw hole 507 so that the bolt 508 is threadedly connected to the screw hole 507, and the tightened bolt 508 fastens the pre-connected fixing frame 503 and the anti-slide plate 504, and then the anti-slide plate 504 is completely installed on the inner side of the splint 4.

[0042] When the other pile needs to be hoisted, the dovetail piece 506 fixedly connected to one side of the anti-skid plate 504 is inserted into the dovetail groove 505 provided on the surface of the fixing frame 503, so that the dovetail groove 505 and the dovetail piece 506 in the engaged state pre-connect the anti-skid plate 504 and the fixing frame 503, and then the bolt 508 is inserted into the screw hole 507, so that the bolt 508 is threadedly connected with the screw hole 507, and the tightened bolt 508 fastens the fixing frame 503 in the pre-connected state to the anti-skid plate 504, and then the anti-skid plate 504 is completely installed on the inner side of the splint 4, avoiding the surface of the splint 4 from being worn and the situation that the other pile is clamped unstably, and the above structure makes it easy to disassemble and replace the damaged anti-skid plate 504;

[0043] At this time, the mechanical arm assembly 1 drives the first clamping arm 2 and the second clamping arm 3 to move, so that the first clamping arm 2 and the second clamping arm 3 in the moving state respectively drive the two clamping plates 4 to move closer, and the two clamping plates 4 in the close state clamp the two sides of the square pile. At this time, the shaft-holding motor 501 is powered on and operated, so that the output shaft of the shaft-holding motor 501 in the running state drives the rotating shaft 509 and the gear 5010 to rotate. Since the gear 5010 is engaged with the two racks 5011, the rotating gear 5010 drives the two racks 5011 to move closer, and the two racks 5011 in the synchronous moving state respectively drive the two L-shaped plates 502 to move closer. Since two L-shaped plates 502 are slidably installed on the two clamping plates 4, the two groups of L-shaped plates 502 in the close moving state clamp the other two sides of the square pile, so that the two groups of L-shaped plates 502 cooperate with the two clamping plates 4 to clamp the four sides of the square pile to a limit, thereby improving the stability of the device in clamping the square pile.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A scissor-type prefabricated square pile lifting device, comprising a mechanical arm assembly (1), a first clamping arm (2) and a second clamping arm (3), wherein the first clamping arm (2) and the second clamping arm (3) are slidably connected, and one end of each of the first clamping arm (2) and the second clamping arm (3) is fixedly connected to a clamping plate (4), characterized in that: The clamping plate (4) is of a hollow structure, and a clamping mechanism (5) is provided on the outer side and the inner side of the clamping plate (4), and the clamping mechanism (5) is used to improve the stability of the device in clamping the pile; The clamping mechanism (5) comprises an anti-slide plate (504), a driving assembly, a disassembly assembly, and two L-shaped plates (502); The driving assembly is used to drive the two L-shaped plates (502) to move synchronously toward or away from each other; The anti-slip plate (504) is detachably connected to the clamping plate (4) via the detachable assembly.

2. The scissor-type prefabricated square pile lifting device according to claim 1, characterized in that: The driving assembly includes a shaft-holding motor (501), a rotating shaft (509), a gear (5010) and two racks (5011); The shaft-holding motor (501) is fixedly mounted on one side of the outer wall of the clamping plate (4), the rotating shaft (509) is rotatably mounted on the inner wall of the clamping plate (4), and the rotating shaft (509) is fixedly connected to the output shaft end of the shaft-holding motor (501), the gear (5010) is assembled on the outer wall of the rotating shaft (509), and the rack (5011) is assembled on one end of the non-bending portion of the L-shaped plate (502).

3. The scissor-type prefabricated square pile lifting device according to claim 2, characterized in that: The gear (5010) is meshed with the two racks (5011), and the meshed gear (5010) and the two racks (5011) are used to drive the two L-shaped plates (502) to move synchronously.

4. The scissor-type prefabricated square pile lifting device according to claim 2, characterized in that: The non-bent portion of the L-shaped plate (502) is slidably connected to the interior of the clamping plate (4), and the bent portion of the L-shaped plate (502) is sleeved on the surface of the square pile.

5. The scissor-type prefabricated square pile lifting device according to claim 1, characterized in that: The disassembly and assembly components include a fixing frame (503), a dovetail groove (505), a dovetail piece (506), a screw hole (507) and a bolt (508); The fixing frame (503) is fixedly connected to the other side of the outer wall of the splint (4), the dovetail groove (505) is opened on the surface of the fixing frame (503) and extends inwardly thereof, the dovetail piece (506) is fixedly connected to one side of the anti-slip plate (504), the screw hole (507) passes through the anti-slip plate (504), the dovetail piece (506), the dovetail groove (505) in sequence to the interior of the fixing frame (503), and the bolt (508) is threadedly connected to the screw hole (507).

6. The scissor-type prefabricated square pile lifting device according to claim 5, characterized in that: The dovetail groove (505) is used for inserting the dovetail piece (506) therein, the inner wall of the dovetail groove (505) is matched with the outer wall of the dovetail piece (506), and the dovetail groove (505) and the dovetail piece (506) in the engaged state are used to pre-connect the anti-slip plate (504) and the fixing frame (503).

7. The scissor-type prefabricated square pile lifting device according to claim 5, characterized in that: The anti-slide plate (504) is detachably connected to the fixing frame (503), and the bolt (508) in a tightened state is used to fasten and install the fixing frame (503) and the anti-slide plate (504) in a pre-connected state.